Across
- 3. movement of a fluid from different densities
- 6. when a piece of crust sinks other another
- 7. also referred to as the lithosphere
- 8. lava before it reaches the earth's surface
- 9. slide against each other to form a boundary
Down
- 1. old crust from a plate is pushed under another
- 2. to move apart to form a boundary
- 4. the outer layer of earth
- 5. to come together to form a boundary
- 10. break or separation caused by plate tectonics